Church representative gets support at leftwing event (6)
I believe the answer is:
legate
'church representative' is the definition.
'legate' can be an answer for 'representative' (legate is a kind of representative). I am unsure of the 'church' bit.
'support at leftwing event' is the wordplay.
'support' becomes 'leg' (leg is a kind of support).
'leftwing event' becomes 'e' (I can't explain this - if you can you should give a lot more credence to this answer).
'leg'+'at'+'e'='LEGATE'
'gets' is the link.
Can you help me to learn more?
(Other definitions for legate that I've seen before include "Vatican emissary" , "Emissary representing the Pope" , "Official representative" , "Official emissary" , "Envoy - pope's representative" .)